Two ovals are similar.
The smaller oval has a diameter of 7.5 and the larger oval has a diameter of 22.5.
The smaller oval has an area of 11.7cm2.
Calculate the area of the larger oval
+129840 By "oval," I'm assuming that you might mean "ellipse"
The area of an ellipse is given by pi* a * b where a and b are the lengths of the semi-major and semi-minor axis
Since the ovals are similar in all respects and the diameter of the larger one to the diameter of the smaller one is 22.5/7.5 = 3 / 1 ....then the dimensions of the larger are 3 times as much as the smaller
Then....the area will be 9 times as great because the lengths of both the semi-major and semi-minor axis will be 3 times as great....so the area of the larger = 9 * 11.7 = 105.3 cm^2
